Home / 1,429.29-2,144.66-564.21

Finding the Fourth Proportional to 1,429.29, 2,144.66 and 564.21

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Solution

The fourth proportional to 1,429.29, 2,144.66 and 564.21 is: 846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.29 : 2,144.66 = 564.21 : x
  2. Step 2: Convert to fraction form
    1,429.29/2,144.66 = 564.21/x
  3. Step 3: Cross multiply
    1,429.29x = 2,144.66 × 564.21
  4. Step 4: Simplify right side
    1,429.29x = 1,210,035.80
  5. Step 5: Solve for x
    x = 1,210,035.80/1,429.29
  6. Step 6: Final answer
    x = 846.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.